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crown dc 300a power amps

hello do any one know how good or bad are crown dc 300a amps are.this guy name joe put an ad in the washington post. selling old tube and solid state eq.he is some kind of audio nut like my self, but you would not belive all the audio eq this guy have. from altec lansing jbl mac sansui tube klipsh fisher marantz the list goes on and on. I ask him why not go to lansing heritage and sell all this stuff his reply was to much of a headache . any way he selling all this stuff dirt cheap. he told me he is not in this for the money, but he lives for good eq. but back to my quesiton how good is this amp I got 2 amps for 50 dollars each thanks gene

The DC-300A, some say this was the best sounding amp crown ever made! I say it is good for bass, if its enough power for your speakers, but most of todays speakers need considerably more than this amp can give. Still, has a certain sound on the bottom that I think is good.

Up further into the mids and highs, I always thought the DC-300A was a bit grainy sounding, it will work though, not as refined as I like in the mids and highs!

crown/amcron DC 300 a

The dc 300 a are all I use after many years of dealing with the expensive stuff. I use the for JBL 4350 and 4435. The crown stuff is very reliable, but take the drivers along when they go due to DC output. I am still working at some DC preventer curcuits to avoid damage to expensive drivers, but time,,
time.. time is like JBL's. You can not get enough.

The crown stuff is very reliable, but take the drivers along when they go due to DC output.

A Crown DC amp can be fatal to speakers even after it has been blown, disconnected, unplugged and put up for sale. Take it from me--do not hook up an unknown Crown or other Direct Connected amp to a good speaker. It can fry a voice coil instantaneously, making a horrible but very brief noise and little curls of smoke rising slowly from the scene of the crime. See it work on the seller's speakers, have it checked out by a technician, or hook it up to a dummy load and check the output for DC voltage before trying the amp with a speaker. (I think this last is a good way to check, but I am not a technician.)

Well its one of the problems with amp that has gain at DC rather than unity gain. (who cares for square waves to 5 hertz)

Personally I think its a dumb arse idea when one can design with suitable time constants to avoid dc floating down the signal path using audiophile capacitors like BC N series.

In the case of compression drivers I would always a/c couple using a hi quality film foil capacitor (charge couple if you like) .

Also, with any pro amp you buy SH, get the output stage serviced before use. The power output devices do age and fail and this is the prime reason for such reputaions. Better still...buy a new one..they are cheap enough these days.

The dc 300 a are all I use after many years of dealing with the expensive stuff. I use the for JBL 4350 and 4435. The crown stuff is very reliable, but take the drivers along when they go due to DC output. I am still working at some DC preventer curcuits to avoid damage to expensive drivers, but time,,
time.. time is like JBL's. You can not get enough.

Klaus

Old Colony Sound Lab sells a speaker protection circuit kit for 40 bucks. It is made by Velleman. If your going to run Phase Linears, Crown , or any other straight through amp this is manditory to have.

Old Colony Sound Lab sells a speaker protection circuit kit for 40 bucks. It is made by Velleman. If your going to run Phase Linears, Crown , or any other straight through amp this is manditory to have.

Old Colony Sound Lab sells a speaker protection circuit kit for 40 bucks. It is made by Velleman. If your going to run Phase Linears, Crown , or any other straight through amp this is manditory to have.

Yes, Flame Linear can be a bad amp! Matter of fact, Flame Linear is more dangerous than the DC-300!

But, there are guys that love those old 700B,s!

I think any amp can he dangerous if not used correctly or maintained.

You have to ask yourself why would it break....Carver was not an idiot!

But some idiots like shorting the outputs and turning them on and off in the wrong sequence, cooking them or clipping them from an overloaded desk for days on end ......the odd failure is hardly surprising when they turn up clapped out on Ebay to the un suspecting buyer.

My 700 B series 11 was used in a Clair Bros system Touring around Aust for years powering S4 's before I got it and it never missed a beat. I owned a 400 for about 10 yrs and it never missed a beat either.

I called the tech who serviced them before I bought them because his ph was on the back.